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reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["containers","hypervisor","oci"],"created_at":"2024-08-01T02:01:08.685Z","updated_at":"2026-01-14T14:30:04.143Z","avatar_url":"https://github.com/hyperhq.png","language":"Go","funding_links":[],"categories":["Go","Runtime","Project/Product","Containers","containers"],"sub_categories":[],"readme":"\nThe runV as a virtualized container runtime engine has been OBSOLETED by [Kata Containers](https://katacontainers.io/).\n\nTogether with Intel, the runV team created Kata Containers project in OpenInfra Foundation, and the\nKata Containers is a top level open infrastructure project in the foundation.\n\nWe encourage folks, who are considering runV, check the Kata Containers project. It could work with\nkubernetes through containerd or CRI-O fluently.\n\nThank you for visiting runV and we are still actively working in Kata Containers community.\n\n----\n\n[![Build Status](https://travis-ci.org/hyperhq/runv.svg?branch=master)](https://travis-ci.org/hyperhq/runv)\n\n## ![runV](logo.png)\n\n`runV` is a hypervisor-based runtime for [OCI](https://github.com/opencontainers/runtime-spec).\n\n### OCI\n\n`runV` is compatible with OCI. However, due to the difference between hypervisors and containers, the following sections of OCI don't apply to runV:\n- Namespace\n- Capability\n- Device\n- `linux` and `mount` fields in OCI specs are ignored\n\n### Hypervisor\n\nThe current release of `runV` supports the following hypervisors:\n- KVM (QEMU 2.1 or later)\n- KVM (Kvmtool)\n- Xen (4.5 or later)\n- QEMU without KVM (NOT RECOMMENDED. QEMU 2.1 or later)\n\n### Distro\n\nThe current release of `runV` supports the following distros:\n\n- Ubuntu 64bit\n\t- 15.04 Vivid\n\t- 14.10 Utopic\n\t- 14.04 Trusty\n- CentOS 64bit\n\t- 7.0\n\t- 6.x (upgrade to QEMU 2.1)\n- Fedora 20-22 64bit\n- Debian 64bit\n\t- 8.0 jessie\n\t- 7.x wheezy (upgrade to QEMU 2.1)\n\n### Build\n\n```bash\n# install autoconf automake pkg-config make gcc golang qemu\n# optional install device-mapper and device-mapper-devel for device-mapper storage\n# optional install xen and xen-devel for xen driver\n# optional install libvirt and libvirt-devel for libvirt driver\n# note: the above package names might be different in various distros\n# create a 'github.com/hyperhq' in your GOPATH/src\n$ cd $GOPATH/src/github.com/hyperhq\n$ git clone https://github.com/hyperhq/runv/\n$ cd runv\n$ ./autogen.sh\n$ ./configure --without-xen\n$ make\n$ sudo make install\n```\n\n### Run\n\n#### Install qemu\nrunv by default uses [qemu](https://www.qemu.org/) to start virtual machines and makes use of [KVM](https://wiki.qemu.org/Features/KVM) if it is supported. Please make sure qemu is installed on the machine.\n\n#### Install hyperstart\nrunv needs [hyperstart](https://github.com/hyperhq/hyperstart) to provide guest kernel and initrd. By default, it looks for kernel and hyper-initrd.img from `/var/lib/hyper/` directory. Build hyperstart and copy them there:\n```\n$ git clone https://github.com/hyperhq/hyperstart.git\n$ cd hyperstart\n$ ./autogen.sh ;./configure ;make\n$ mkdir /var/lib/hyper/\n$ cp build/hyper-initrd.img build/arch/x86_64/kernel /var/lib/hyper\n```\n\n#### Creating an OCI Bundle\n\nIn order to use runv you must have your container in the format of an OCI bundle.\nIf you have Docker installed you can use its `export` method to acquire a root filesystem from an existing Docker container.\n\n```bash\n# create the top most bundle directory\nmkdir /containerbundle\ncd /containerbundle\n\n# create the rootfs directory\nmkdir rootfs\n\n# export busybox via Docker into the rootfs directory\ndocker export $(docker create busybox) | tar -C rootfs -xvf -\n```\n\n#### Creating an OCI Container Spec\n\nAfter a root filesystem is populated you just generate a spec in the format of a `config.json` file inside your bundle.\n`runv` provides a `spec` command to generate a base template spec that you are then able to edit.\nTo find features and documentation for fields in the spec please refer to the [specs](https://github.com/opencontainers/runtime-spec) repository.\n\n```bash\nrunv spec\n```\n\n`runc spec` can be also used here for gernerating the `config.json` for a runv containter, since runv and runc are both OCI compatitible runtime.\n\n#### Running Containers\n\nThe convenience command `run` will handle creating, starting, and deleting the container after it exits.\n\n```bash\n# run as root\ncd /containerbundle\nrunv --kernel /path/to/kernel --initrd /path/to/initrd.img run mycontainer\n# If you used the unmodified `runv spec` template this should give you a `sh` session inside the container.\n$ ps aux\nUSER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot         1  0.0  0.1   4352   232 ttyS0    S+   05:54   0:00 /init\nroot         2  0.0  0.5   4448   632 pts/0    Ss   05:54   0:00 sh\nroot         4  0.0  1.6  15572  2032 pts/0    R+   05:57   0:00 ps aux\n```\n\nThe arguemnts `--kernel /path/to/kernel` and `--initrd /path/to/initrd.img` can be omitted.\nIn this case, `/var/lib/hyper/kernel` and `/var/lib/hyper/hyper-initrd.img` will be used by runv.\n\nA container can be also be run via using the specs lifecycle operations.\nSuch as `runv create mycontainer`, `runv start mycontainer` and `runv delete mycontainer`.\nThis gives you more power over how the container is created and managed while it is running.\n\n### Run it with docker\n\n`runv` is a runtime implementation of [OCI runtime](https://github.com/opencontainers/runtime-spec) and its command line is highly compatible with the 1.0.0-rc3(keeping updated with the newest released runc). But it is still under development and uncompleted.\n\n`runV` provides [a detailed walk-though](docs/configure-runv-with-containerd-docker.md) to integrate with latest versions of docker and containerd.\n\nQuick example (requires 17.06.1-ce that talks runc-1.0.0-rc3 command line):\n\nConfigure docker to use `runV` as the default runtime.\n```bash\n$cat /etc/docker/daemon.json\n{\n  \"default-runtime\": \"runv\",\n  \"runtimes\": {\n    \"runv\": {\n      \"path\": \"runv\"\n    }\n  }\n}\n```\n\nStart docker, pull and create busybox container.\n```bash\n$sudo systemctl start docker\n$docker pull busybox\nUsing default tag: latest\nlatest: Pulling from library/busybox\nDigest: sha256:2605a2c4875ce5eb27a9f7403263190cd1af31e48a2044d400320548356251c4\nStatus: Image is up to date for busybox:latest\n$docker run --rm -it busybox\n/ # ls\nbin   dev   etc   home  lib   proc  root  sys   tmp   usr   var\n/ # exit\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhyperhq%2Frunv","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhyperhq%2Frunv","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhyperhq%2Frunv/lists"}